Subtract 30/8 from 20/25
1st number: 20/25, 2nd number: 3 6/8
20/25 - 30/8 is -59/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
20/25 = 20 × 8/25 × 8 = 160/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
30/8 = 30 × 25/8 × 25 = 750/200 - Subtract the two like fractions:
160/200 - 750/200 = 160 - 750/200 = -590/200 - After reducing the fraction, the answer is -59/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25-30/8 20/25-60/8 20/50-30/8 20/25-30/16 60/25-30/8 20/25-90/8 20/75-30/8 20/25-30/24 20/25-30/40 20/25-30/56